150640387 has 2 divisors, whose sum is σ = 150640388. Its totient is φ = 150640386.

The previous prime is 150640381. The next prime is 150640397. The reversal of 150640387 is 783046051.

150640387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (783046051) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 150640387 - 2¹⁵ = 150607619 is a prime.

It is not a weakly prime, because it can be changed into another prime (150640381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75320193 + 75320194.

It is an arithmetic number, because the mean of its divisors is an integer number (75320194).

Almost surely, 2^150640387 is an apocalyptic number.

150640387 is a deficient number, since it is larger than the sum of its proper divisors (1).

150640387 is an equidigital number, since it uses as much as digits as its factorization.

150640387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 150640387 is about 12273.5645596542. The cubic root of 150640387 is about 532.0843363668.

The spelling of 150640387 in words is "one hundred fifty million, six hundred forty thousand, three hundred eighty-seven".